It's fun to hear these ladies bargaining with their chastity wimps. Having the guys suggest their own humiliations, in the hope of earning a bit of favor, is diabolical. And the ladies can always cheat and lie during these negotiations because they have the keys. As the final cap reminds us, these games are ultimately unfair... to the guys.
I like the girls who sense the unfairness of the situation, but can't bring themselves to avoid taking advantage of it anyway, because the situation is just SO good for them.